diff --git a/tests/test_perceptual_loss.py b/tests/test_perceptual_loss.py
index 879f68a6c6..3a4e084b7e 100644
--- a/tests/test_perceptual_loss.py
+++ b/tests/test_perceptual_loss.py
@@ -79,4 +79,4 @@ def test_medicalnet_on_2d_data(self):
 
 
 if __name__ == "__main__":
-    unittest.main() 
+    unittest.main()